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Thread: Skywatcher 80ED or 100ED on Celestron Advanced VX

  1. #11
    Lowjiber's Avatar
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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX



    Quote Originally Posted by Christo View Post
    I am still confused how the 80mm objective is heavier than a 100mm? when the glass is the same. If the 80 was the 80mm Esprit and the other was the 100 ED Pro I might believe it but as you have said 12" less tube and about 50% less glass I don't get the physics of the 80 being heavier if they are the same make and model.
    I'm sorry I just finished a class and this question is stuck in my mind with the extra free time.
    Now I'm really gonna hurt your head...

    The inside-diameter of the (common) tube is 96mm.

    We're stealing the OP's thread, so I'll stop now.
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  2. #12
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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Quote Originally Posted by Lowjiber View Post
    Now I'm really gonna hurt your head...

    The inside-diameter of the (common) tube is 96mm.

    We're stealing the OP's thread, so I'll stop now.
    Crap, sorry Kel123. This wouldn't be the first time a thread has gone off topic.
    The Skywatchers are great scopes, you will not be disappointed in any purchase just confused on specs
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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Thanks so much Lowjiber for the information.
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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Thanks Christo for the useful chat. I never saw that. I guess the merchants are making the mistake, I saw the weight difference in about three websites, including Bhphoto.

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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Meanwhile, how challenging could it be to image deep sky with the f9 100ED, being that it is a slow scope? Will a focal reducer be of much help?

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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Quote Originally Posted by Kel123 View Post
    Meanwhile, how challenging could it be to image deep sky with the f9 100ED, being that it is a slow scope? Will a focal reducer be of much help?
    I have done some imaging with the f9 100ED on an AVX, and have had some good results. At least to me as a newbie. Also wondering what the SW 0.85x FR/FF would do for me.
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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Quote Originally Posted by Kel123 View Post
    Meanwhile, how challenging could it be to image deep sky with the f9 100ED, being that it is a slow scope? Will a focal reducer be of much help?
    Depending on what you want to image it would help but if you can guide for a longer exposure you should be okay.
    So the reducer would be about 300 extra, the FR and a threaded adapter that you need to connect your camera. They do not supply an adapter at least my reducer did not come with one. On the other side the you should have some nice planetary views and images with a barlow. You could always see if anyone is selling a used FR.
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    Default Re: Skywatcher 80ED or 100ED on Celestron Advanced VX

    Thanks Guys
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